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SPF5017 Datasheet

High-side Power Switch IC

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High-side Power Switch ICs [Surface-mount 2-circuit, current monitor output function] SPF5017
Features
Internal current sense resistor
High accuracy current monitor output (sample & hold function)
Built-in overcurrent and thermal protection circuits
External Dimensions (unit: mm)
14.74±0.2
13.04±0.2
20 11
+0.1
1.0 – 0.05
Fin
thickness
a
Absolute Maximum Ratings
(Ta=25ºC)
b
Parameter
Power supply voltage 1
Power supply voltage 2
Power supply voltage 3
Current sensing voltage
Output terminal voltage
Symbol
VB
Vcc
VB
Vsense+
Vsense–
VOUT
Ratings
0 to 32
–0.5 to 7.0
0 to 40
–0.8 to 6
Vsense+±Io • Rsense
–2 to 32
Unit Conditions
V
V
V VB terminal, t = 1 min
V
V
1 10
1.27±0.25
+0.15
0.4 – 0.05
+0.15
0.25– 0.05
a) Part No.
b) Lot No.
Input terminal voltage
Output current
VPWM
VHold
IOUT
–0.5 to 7.0
2.0
V
A
Block Diagram (for one channel)
Power dissipation
Storage temperature
Channel temperature
PD
Tstg
Tch
2.4 to 5.0
–40 to +150
150
W Depends on surface-mount board pattern
°C
°C
Electrical Characteristics (VB=14V, Ta=25ºC unless otherwise specified) – One circuit equivalent
Parameter
Ratings
Symbol
min typ max
Unit
Conditions
Min. operating power supply voltage VB min
6
Operating power supply voltage 1 VB 10 14 16
Operating power supply voltage 2 VCC
5.0
V Minimum operation of OUT terminal.
V *1
V *2
Quiescent circuit current 1
Iqvb
7.2 mA Vcc =5V, VPWM =0V, One circuit equivalent
PWM
2
Hold
3
S/H
5
Vcc SFP5017
1
OSC
Charge
Pump
TSD OCP
70k
70k
CMOS Logic
S/H
4
C
clamp
Sense
MOS
lamp +
6
LG
VB
17
D
S
OUT
19
Sense+
18
Sense
R
20
Sense–
Quiescent circuit current 2
Iqvcc
0.2 mA Vcc = 5V, VPWM = 0V
PWM terminal input voltage
PWM terminal input current
Hold terminal input voltage
Hold terminal input current
Output ON resistance
VPWMH
VPWML
IPWMH
VHoldH
VHoldL
IHoldH
RDSon
3.5
3.5
Current sensing resistance
Rsense
Overcurrent protection starting current
Is
3.0
V Vcc= 5V
1.5
Standard Connection Diagram
70 110 µA Vcc = 5V, VPWM = 5V, Active H * 3
V Vcc= 5V
1.5
1
VCC
17
VB
70 110 µA Vcc = 5V, VPWM = 5V, Active H * 3
0.14
IOUT = 1A
0.21
IOUT = 1A, Ta = 125°C
0.21
IOUT = 1A
0.25
IOUT = 1A, Ta = 125°C
A *4
Controlling
microcomputer
CPU
2
PWM
3 Hold
1k5 S/H
5.1
0.01
µF
k
SFP5017
C
4
C1
LG
6
19
OUT
18
Sense+
Sense20
D1
D2
Thermal shutdown operating temperature
Operation circuit for current monitor output
Ttsd
Io
150
0.2
°C
1.2 A * 1
* Use a Schottky Di for D2 when the Sense+ terminal
is lower than the abs. max. rated voltage (–0.8V)
0.2 V Io= 0A, Vcc= 5V
Current monitor output voltage VSH
0.488
1.219
0.500
1.250
0.512
1.281
V Io= 0.2A, Vcc= 5V
Timing Chart
V Io= 0.5A, Vcc= 5V, Ta= –40 to 140°C
Current monitor output current ISH
2.925
–6
3.000
3.075
5
V Io= 1.2A, Vcc= 5V, Ta= –40 to 140°C
mA Io = 1A, Vcc = 5V, VSH = 0V
mA Io = 1A, Vcc = 5V, VSH = 5V
Ordinary operation Thermal Ordinary operation
(auto hold)
protection (external hold)
VPWM
Overcurrent
protection
Ordinary operation
(auto hold)
Output transfer time
Output rise time
Output fall time
ton
toff
tr
tf
15 µs
15 µs
Io = 0.5A, Vcc= 5V
100 µs
50 µs
Vout
Icoil
VS/H
*1 *1
*2
Current monitor output hold time
Current monitor output delay time
Hold time after inputting hold
tsh
tshd
tshh
S/H settling time
t stt
500
650 µs
Io= 0.5A, Vcc= 5V,
1 µs
C1= 0.033µF
2 µs
70
µs
VB= 11V, Vcc= 5V, Io= 1.2A,
C1= 0.033µF
80
µs
VB= 11V, Vcc= 5V, Io= 1.2A,
C1= 0.033µF, Ta= 125°C
500 to 650 500 to 650
usec
usec
VHold
Truth table
VPWM L
VOUT
L
H
H
Note:
*1: Accuracy warranty range for current monitor output
*2: Equivalent errors are not included in current monitor output accuracy.
*3: With built-in pull-down resistance (70ktyp)
*4: Self-excitation and oscillation type
*5: Accuracy of current monitor output is affected by the materials of the hold capacitor (C1).
The capacitor C1 must be of low dielectric absorption and have good bias and leak current characteristics.
46


Part Number SPF5017
Description High-side Power Switch IC
Maker Sanken
Total Page 1 Pages
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